Help needed - Altivar VFD & 3-Phase Motor Connections

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Peter Neill - 06 Jul 2006 18:39 GMT

I have a suitable 3-phase motor that I picked up from e-bay, and a
brand new Altivar ATV11 VFD that came into my possession when the
factory shut down, and I want to use these on my ML7.

The connection as shown is straightforward enough, but I want to use a
remote panel with on/off; forward/reverse; and a speed control pot
mounted somewhere close to hand. I don't want to have to step through
the menu panel on the VFD each time to use these basic functions

So my question is how do I achieve this? Scanning the Google archives
seems to indicate that all I need are a couple of switches and a pot
from RS, and 2-wire connection.

Being (as you probably all know by now) an electrical ignoramus, can
somebody guide me through this step-by-step with a detailed list of
what I need and where/how to connect the relevant bits?

Another question I have concerns the VFD mounting. I would like to put
it in an enclosure safe from flying debris and fluid, but the Altivar
manual states that I have to mount it on a backplate 10mm thick with an
area of either 0.12 mt sq if it is steel, or 0.09 mt sq if aluminium
for heat dissipation. Is this really required bearing in mind the thing
has a huge heatsink & fan on the back of it?
Thanks

Peter

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John Stevenson - 06 Jul 2006 19:36 GMT

>I have a suitable 3-phase motor that I picked up from e-bay, and a
>brand new Altivar ATV11 VFD that came into my possession when the
[quoted text clipped - 8 lines]
>seems to indicate that all I need are a couple of switches and a pot
>from RS, and 2-wire connection.

No it's know as 3 wire connection and you have picked the worse
invertor know to man.

The inverter is actually OK it's the book, originally written in Serbo
Croat, translated into the russian and then translated back into
french after being smuggled out.
Problem was pages 21 to 37 were left behind at Chernobyl.

>Being (as you probably all know by now) an electrical ignoramus, can
>somebody guide me through this step-by-step with a detailed list of
>what I need and where/how to connect the relevant bits?

I'll dig a book and look, then email you.

>Another question I have concerns the VFD mounting. I would like to put
>it in an enclosure safe from flying debris and fluid, but the Altivar
>manual states that I have to mount it on a backplate 10mm thick with an
>area of either 0.12 mt sq if it is steel, or 0.09 mt sq if aluminium
>for heat dissipation. Is this really required bearing in mind the thing
>has a huge heatsink & fan on the back of it?

Ignore it, that's the bit that relates to fitting in nuclear subs.

>Thanks
>
>Peter

--
Regards,

John Stevenson
Nottingham, England.

Visit the new Model Engineering adverts page at:-
http://www.homeworkshop.org.uk/

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Peter Neill - 06 Jul 2006 19:51 GMT

> I'll dig a book and look, then email you.

Thanks John, appreciate the help.

Peter

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damiendf - 30 Jun 2009 16:16 GMT

Are Altivar VFD still available? I remember using couple of them lon
time ago. They were ok, not great.

I now use ABB, FUJI or Hitachi vfds. They have much better buil
quality.

http://www.ctiautomation.net/FUJI-Inverters.htm

http://www.clrwtr.com/ABB-Drives.ht

--
damiend

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Model Forum / General / Models / June 2009

Help needed - Altivar VFD & 3-Phase Motor Connections